.wii-flex {
  display: flex;
  width: 100%;
  height: 100%;
}

/* 主轴对齐方式 */
.wii-dir--left {
  flex-direction: row;
}
.wii-dir--right {
  flex-direction: row-reverse;
}
.wii-dir--top {
  flex-direction: column;
}
.wii-dir--bottom {
  flex-direction: column-reverse;
}

/* 主轴排列方式 */
.wii-main--start {
  justify-content: flex-start;
}
.wii-main--end {
  justify-content: flex-end;
}
.wii-main--between {
  justify-content: space-between;
}
.wii-main--center {
  justify-content: center;
}
.wii-main--around {
  justify-content: space-around;
}

/* 换行设置 */
.wii-wrap--nowrap {
  flex-wrap: nowrap;
}
.wii-wrap--wrap {
  flex-wrap: wrap;
}
.wii-wrap--reverse {
  flex-wrap: wrap-reverse;
}

/* 交叉轴排列方式 */
.wii-cross--start {
  align-items: flex-start;
}
.wii-cross--end {
  align-items: flex-end;
}
.wii-cross--center {
  align-items: center;
}
.wii-cross--baseline {
  align-items: baseline;
}
.wii-cross--stretch {
  align-items: stretch;
}

